Optimal Attack Guidance Algorithm for UAV with Net Information Support

A new guidance algorithm with threat avoidance ability and missile launch restriction is proposed. Firstly, mathematic model of guidance is established based on relative velocity vector, second, path restriction model for threat avoidance and terminal restriction is given. Performance index is established based on guidance time as well as control energy, attack guidance is constructed as an optimal control model with nonlinear boundary restriction, state restriction and path restriction. Gauss Pseudo-spectral Method is adopted for model discretization and receding horizon control strategy is introduced for online optimization. Simulation result shows, this new guidance algorithm is effectively for threat avoidance and missile launch requirement could well satisfy at the endpoint.